Merged branch 'dev_native' into lm_sla_supports_auto

Added igl library files

src/igl/isolines.h

@@ -0,0 +1,52 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+//
+// Copyright (C) 2017 Oded Stein <oded.stein@columbia.edu>
+//
+// This Source Code Form is subject to the terms of the Mozilla Public License
+// v. 2.0. If a copy of the MPL was not distributed with this file, You can
+// obtain one at http://mozilla.org/MPL/2.0/.
+
+
+#ifndef IGL_ISOLINES_H
+#define IGL_ISOLINES_H
+#include "igl_inline.h"
+
+#include <Eigen/Dense>
+#include <Eigen/Sparse>
+
+
+namespace igl
+{
+    // Constructs isolines for a function z given on a mesh (V,F)
+    //
+    //
+    // Inputs:
+    //   V  #V by dim list of mesh vertex positions
+    //   F  #F by 3 list of mesh faces (must be triangles)
+    //   z  #V by 1 list of function values evaluated at vertices
+    //   n  the number of desired isolines
+    // Outputs:
+    //   isoV  #isoV by dim list of isoline vertex positions
+    //   isoE  #isoE by 2 list of isoline edge positions
+    //
+    //
+    
+    template <typename DerivedV,
+    typename DerivedF,
+    typename DerivedZ,
+    typename DerivedIsoV,
+    typename DerivedIsoE>
+    IGL_INLINE void isolines(
+                             const Eigen::MatrixBase<DerivedV>& V,
+                             const Eigen::MatrixBase<DerivedF>& F,
+                             const Eigen::MatrixBase<DerivedZ>& z,
+                             const int n,
+                             Eigen::PlainObjectBase<DerivedIsoV>& isoV,
+                             Eigen::PlainObjectBase<DerivedIsoE>& isoE);
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "isolines.cpp"
+#endif
+
+#endif